ImcLoud,
Thanks for the diagram. That will help. I see you are recommending the BIC America F12 sub. I don't see it in your list of home theater items though that you own. Have you owned this sub before? There are so many subs on amazon with good reviews like the BIC F12, Polk Audio PSW505, and klipsch RW12D. How do you choose without trying them. I've had the PSW505 before and it hits hard in the high 30hz region but I would like it to go lower to the 20hz region. I also just found the company Power Sound and might look into getting one of their 15". If so, which one will I choose, sealed or ported. So many options. Also where can I get a Crown amp and what crossover are you recommending.